Title :
Orientation Sensing Using Multiple Passive RFID Tags
Author :
Krigslund, Rasmus ; Popovski, Petar ; Pedersen, Gert F.
Author_Institution :
Dept. of Electron. Syst., Aalborg Univ., Aalborg, Denmark
fDate :
7/4/1905 12:00:00 AM
Abstract :
Knowing the inclination of an object can be valuable information in a supply chain application, e.g., when handling orientation-sensitive objects. In this letter, we present a method for sensing the inclination using radio frequency identification (RFID) technology. The method requires standard RFID equipment and assumes that each object is tagged with a passive UHF tag. We use a simple statistical estimator based on the received signal strength (RSS) of the tag reply. The performance is evaluated via experimental measurements, and the results are positive with a good precision within distances of 2 m.
Keywords :
radiofrequency identification; state estimation; supply chains; multiple passive RFID tags; orientation sensing; passive UHF tag; radiofrequency identification; received signal strength; statistical estimator; supply chain application; Antennas; Calibration; Joints; Noise; Radiofrequency identification; Supply chains; Vectors; Orientation sensing; passive radio frequency identification (RFID) sensors; wireless sensing;
Journal_Title :
Antennas and Wireless Propagation Letters, IEEE
DOI :
10.1109/LAWP.2012.2185918
